Quaking Aspen is a very adaptable native tree that can tolerate cold and a wide variety of soil conditions from moist, loamy sand to shallow, rocky clay. Blue-green leaves turn bright golden-yellow in the fall. Catkins bloom in early spring before the leaves emerge. Ornamental bark is white. A fast-growing tree, Quaking Aspen is a great choice for a natural look to the landscape. It has a tendancy to produce suckers. This tree serves as a food source for butterfly larvae.